*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: 90px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.55 var(--f-body);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 3px; }
a:hover { color: var(--petrol); }
h1, h2, h3, h4 { margin: 0; line-height: 1.18; }
h1, h2 { font-family: var(--f-disp); font-weight: 700; letter-spacing: -0.025em; }
h3 { font-weight: 600; letter-spacing: -0.005em; }
p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
code, kbd, .mono { font-family: var(--f-mono); }
kbd { font-size: 11px; padding: 1px 6px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 5px; background: var(--card); }
:focus-visible { outline: 2.5px solid var(--apricot); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--apricot-t); }

.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--ink); color: var(--card); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }
.sr { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.mute { color: var(--mute); }
.empty { padding: 28px; text-align: center; color: var(--mute); background: var(--card); border: 1px dashed var(--line); border-radius: var(--r); }

#main { flex: 1; width: 100%; max-width: var(--w); margin: 0 auto; padding: 28px var(--gut) 72px; }
#main.enter { animation: enter .35s ease-out; }
@keyframes enter { from { opacity: 0; transform: translateY(6px); } }

/* ---------- Ticker ---------- */
#ticker { display: flex; height: 34px; background: var(--petrol-deep); color: var(--on-petrol); font: 500 12.5px/34px var(--f-mono); overflow: hidden; }
.tk-label { flex: none; background: var(--apricot); color: var(--on-apricot); padding: 0 14px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; font-size: 11px; position: relative; }
.tk-label::after { content: ''; position: absolute; right: -10px; top: 0; border-left: 10px solid var(--apricot); border-top: 17px solid transparent; border-bottom: 17px solid transparent; }
.tk-track { flex: 1; overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 40px, #000 calc(100% - 40px), transparent); }
.tk-belt { display: flex; width: max-content; animation: belt 70s linear infinite; }
#ticker:hover .tk-belt, #ticker:focus-within .tk-belt { animation-play-state: paused; }
@keyframes belt { to { transform: translateX(-50%); } }
.tk-run { display: flex; list-style: none; margin: 0; padding: 0 0 0 24px; }
.tk-run li a { display: inline-flex; gap: 8px; align-items: center; padding-right: 34px; text-decoration: none; color: inherit; white-space: nowrap; }
.tk-run li a:hover b { color: var(--apricot); }
.tk-run i { font-style: normal; font-size: 10px; }
.tk-run i.up { color: #5fe0a8; } .tk-run i.flat { color: #f2c75c; } .tk-run i.down { color: #ff8b83; }
.tk-run b { font-weight: 600; letter-spacing: .04em; }
.tk-run span { opacity: .85; }
.tk-run em { font-style: normal; opacity: .55; }
@media (prefers-reduced-motion: reduce) {
  .tk-belt { animation: none; }
  .tk-track { overflow-x: auto; }
  .tk-run[aria-hidden] { display: none; }
}

/* ---------- Header ---------- */
#top { position: sticky; top: 0; z-index: 40; background: color-mix(in srgb, var(--card) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top-in { max-width: var(--w); margin: 0 auto; padding: 0 var(--gut); min-height: 64px; display: flex; align-items: center; gap: 22px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--petrol); text-decoration: none; }
.brand span { font: 800 21px var(--f-disp); letter-spacing: -0.03em; color: var(--ink); }
.nav { display: flex; gap: 4px; }
.nav a { white-space: nowrap; padding: 8px 14px; border-radius: 99px; text-decoration: none; font-weight: 500; color: var(--ink-2); }
.nav a:hover { background: var(--bg); color: var(--ink); }
.nav a.on { background: var(--ink); color: var(--card); }
.top-tools { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.find-btn { display: inline-flex; align-items: center; gap: 8px; padding: 7px 8px 7px 12px; border: 1px solid var(--line); border-radius: 99px; background: var(--bg); color: var(--mute); min-width: 230px; }
.find-btn:hover { border-color: var(--petrol); color: var(--ink); }
.find-btn kbd { margin-left: auto; }
.watch-btn { display: inline-flex; align-items: center; gap: 5px; padding: 7px 12px; border-radius: 99px; border: 1px solid var(--line); text-decoration: none; font: 600 13px var(--f-mono); color: var(--mute); }
.watch-btn.has { color: var(--on-apricot); background: var(--apricot); border-color: var(--apricot); }
.watch-btn.has svg { fill: currentColor; }
.icon-btn { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line); background: var(--card); color: var(--ink-2); }
.icon-btn:hover { color: var(--ink); border-color: var(--petrol); }
.staff-link { font: 600 12px var(--f-mono); text-transform: uppercase; letter-spacing: .06em; padding: 8px 10px; border-radius: 8px; background: var(--petrol); color: var(--on-petrol); text-decoration: none; }

/* ---------- Finder ---------- */
#finder { position: fixed; inset: 0; z-index: 60; background: color-mix(in srgb, var(--petrol-deep) 55%, transparent); padding: 70px var(--gut) 24px; overflow-y: auto; }
.fd-in { max-width: 1040px; margin: 0 auto; background: var(--card); border-radius: var(--r); border: 1px solid var(--line); box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .45); overflow: hidden; }
.fd-bar { display: flex; gap: 10px; align-items: center; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.fd-bar input { flex: 1; border: 0; background: transparent; font-size: 20px; padding: 6px 4px; outline: none; }
.fd-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 4px 18px; padding: 18px; max-height: 64vh; overflow-y: auto; }
.fd-col { display: flex; flex-direction: column; gap: 2px; }
.fd-moves { grid-column: 1 / -1; border-top: 1px solid var(--line-2); padding-top: 12px; }
.fd-h { font: 600 11px var(--f-mono); text-transform: uppercase; letter-spacing: .1em; color: var(--mute); margin: 0 0 6px; }
.fd-m { display: flex; gap: 9px; align-items: flex-start; padding: 7px 8px; border-radius: 8px; text-decoration: none; }
.fd-m:hover, .fd-m:focus-visible { background: var(--bg); }
.fd-m b { font-weight: 600; font-size: 14.5px; display: block; }
.fd-m small { color: var(--mute); font-size: 12.5px; }
.fd-m .cdot { margin-top: 6px; }
.fd-none { grid-column: 1 / -1; color: var(--mute); padding: 20px 0; }

/* ---------- Footer ---------- */
#foot { background: var(--petrol-deep); color: var(--on-petrol); }
.foot-in { max-width: var(--w); margin: 0 auto; padding: 44px var(--gut) 36px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 32px; }
.foot-brand { display: flex; gap: 14px; align-items: flex-start; color: var(--apricot); }
.foot-brand p { color: var(--on-petrol); max-width: 44ch; opacity: .9; }
.foot-nav { display: flex; flex-direction: column; gap: 6px; align-items: flex-start; }
.foot-nav .fd-h { color: inherit; opacity: .6; }
.foot-nav a, .foot-nav .link-btn { color: inherit; text-decoration: none; display: inline-flex; gap: 6px; align-items: center; }
.foot-nav a:hover { color: var(--apricot); }
.foot-note { grid-column: 1 / -1; border-top: 1px solid color-mix(in srgb, var(--on-petrol) 18%, transparent); padding-top: 18px; font-size: 13.5px; opacity: .7; max-width: 100ch; }

/* ---------- Toasts ---------- */
#toasts { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); z-index: 90; display: grid; gap: 8px; }
.toast { background: var(--ink); color: var(--card); padding: 10px 16px; border-radius: 99px; font-weight: 500; font-size: 14px; animation: enter .25s ease-out; }

/* ---------- Shared bits ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 18px; border-radius: 99px; border: 1px solid transparent; font-weight: 600; text-decoration: none; line-height: 1.2; }
.btn-apricot { background: var(--apricot); color: var(--on-apricot); }
.btn-apricot:hover { color: var(--on-apricot); filter: brightness(1.05); }
.btn-petrol { background: var(--petrol); color: var(--on-petrol); }
.btn-petrol:hover { color: var(--on-petrol); filter: brightness(1.1); }
:root[data-theme="dark"] .btn-petrol { color: var(--petrol-deep); }
.btn-line { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-line:hover { border-color: var(--petrol); }
.btn.block { width: 100%; }
.link-btn { background: none; border: 0; padding: 0; color: var(--petrol); text-decoration: underline; text-underline-offset: 3px; }
.more { display: inline-block; margin-top: 12px; font-weight: 600; color: var(--petrol); text-decoration: none; }
.more:hover { text-decoration: underline; }

.kick { font: 600 11.5px var(--f-mono); text-transform: uppercase; letter-spacing: .12em; color: var(--petrol); }
.kick a { text-decoration: none; display: inline-flex; align-items: center; gap: 7px; }
.page-h { padding: 18px 0 26px; max-width: 760px; }
.page-h h1 { font-size: clamp(30px, 4.4vw, 50px); margin: 10px 0 12px; }
.page-h > p:not(.kick) { color: var(--ink-2); font-size: 18px; }
.sec { margin-top: 64px; }
.sec-h { display: grid; grid-template-columns: auto 1fr; column-gap: 14px; row-gap: 6px; align-items: baseline; margin-bottom: 22px; }
.sec-h .kick { grid-row: span 2; align-self: start; margin-top: 6px; min-width: 32px; padding: 4px 8px; border: 1.5px solid var(--petrol); border-radius: 99px; text-align: center; letter-spacing: .06em; }
.sec-h h2 { font-size: clamp(22px, 2.6vw, 30px); }
.sec-h > p:not(.kick) { color: var(--mute); max-width: 68ch; }
.sec-h:not(:has(.kick)) { grid-template-columns: 1fr; }

.cdot { display: inline-block; flex: none; width: 9px; height: 9px; border-radius: 3px; background: var(--cc, var(--c-none)); margin-right: 7px; vertical-align: 1px; transform: rotate(45deg); }

.sig { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px 3px 8px; border-radius: 99px; font: 600 11px/1.5 var(--f-mono); text-transform: uppercase; letter-spacing: .06em; }
.sig i { font-style: normal; font-size: 9px; }
.sig.up { background: var(--up-t); color: var(--up); }
.sig.flat { background: var(--flat-t); color: var(--flat); }
.sig.down { background: var(--down-t); color: var(--down); }
.glyph { font-family: var(--f-mono); font-weight: 600; text-decoration: none; font-style: normal; }
.glyph.up { color: var(--up); } .glyph.flat { color: var(--flat); } .glyph.down { color: var(--down); }

/* Stage gauge */
.gauge { display: inline-grid; grid-template-columns: repeat(5, 1fr); gap: 3px; width: 120px; vertical-align: middle; flex: none; }
.g-seg { position: relative; height: 8px; border-radius: 3px; background: var(--seg-idle); }
.g-seg.past { background: var(--seg-past); }
.g-seg.gain { background: repeating-linear-gradient(135deg, var(--seg-gain) 0 3px, transparent 3px 6px), var(--seg-idle); }
.g-seg.now.up { background: var(--up); }
.g-seg.now.flat { background: var(--flat); }
.g-seg.now.down { background: var(--down); }
.g-seg.now.is { background: var(--petrol); }
.g-seg.lost { background: repeating-linear-gradient(135deg, var(--down) 0 2px, transparent 2px 5px), var(--down-t); }
.g-seg.from { box-shadow: inset 0 0 0 1.5px var(--ink-2); }
.gauge.xs { width: 64px; gap: 2px; }
.gauge.xs .g-seg { height: 6px; border-radius: 2px; }
.gauge.lg { width: 100%; max-width: 480px; gap: 5px; }
.gauge.lg .g-seg { height: 14px; border-radius: 5px; }
.gauge.xl { width: 100%; gap: 6px; }
.gauge.xl .g-seg { height: 18px; border-radius: 6px; }
.gauge.has-labels { padding-bottom: 24px; }
.g-seg b { position: absolute; left: 0; top: 100%; margin-top: 6px; font: 500 11px var(--f-mono); color: var(--mute); letter-spacing: .05em; }
.g-seg.now b { color: var(--ink); font-weight: 700; }

.star { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; border: 1px solid var(--line); background: var(--card); color: var(--mute); flex: none; }
.star:hover { color: var(--apricot); border-color: var(--apricot); }
.star[aria-pressed="true"] { color: var(--apricot); border-color: var(--apricot); background: var(--apricot-t); }
.star[aria-pressed="true"] svg { fill: currentColor; }
.star-wide { width: auto; display: inline-flex; gap: 7px; padding: 0 14px; height: 38px; border-radius: 99px; font-weight: 600; font-size: 14px; }

.chip { display: inline-flex; align-items: center; gap: 2px; padding: 5px 8px 5px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); font-size: 13.5px; font-weight: 500; text-decoration: none; }
.chip:hover { border-color: var(--cc, var(--petrol)); color: var(--ink); }
.chip code { margin-left: 6px; font-size: 10.5px; font-weight: 600; padding: 1px 5px; border-radius: 4px; background: var(--bg-2); color: var(--ink-2); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.pill { display: inline-flex; align-items: center; padding: 7px 13px; border-radius: 99px; border: 1px solid var(--line); background: var(--card); font-size: 14px; font-weight: 500; color: var(--ink-2); }
.pill:hover { border-color: var(--petrol); color: var(--ink); }
.pill.on { background: var(--ink); color: var(--card); border-color: var(--ink); }
.pill .cdot { margin-right: 8px; }

/* Move tile */
.mv { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; transition: border-color .15s, transform .15s; }
.mv:hover { border-color: var(--petrol); transform: translateY(-2px); }
.mv-img { display: block; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-2); }
.mv-img img { width: 100%; height: 100%; object-fit: cover; }
.mv-body { display: flex; flex-direction: column; gap: 10px; padding: 16px 18px 14px; flex: 1; }
.mv-meta { display: flex; justify-content: space-between; align-items: center; gap: 10px; font: 500 12px var(--f-mono); color: var(--mute); }
.mv h3 { font-size: 18px; line-height: 1.3; }
.mv h3 a { text-decoration: none; }
.mv h3 a:hover { color: var(--petrol); text-decoration: underline; }
.mv-dek { color: var(--ink-2); font-size: 15px; }
.mv-foot { margin-top: auto; padding-top: 12px; border-top: 1px dashed var(--line); display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.mol-link { display: inline-flex; align-items: center; font-weight: 600; font-size: 14px; text-decoration: none; }
.mv-step { display: inline-flex; align-items: center; gap: 8px; }
.mv-step code, .mlog-meta code, .hold-top code, .sc-stage code { font-size: 11.5px; color: var(--ink-2); }

/* Compact move line */
.ml { display: grid; grid-template-columns: 58px 16px 1fr; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line-2); text-decoration: none; align-items: start; }
.ml:hover b { color: var(--petrol); text-decoration: underline; }
.ml-date { font: 600 12.5px/1.25 var(--f-mono); color: var(--ink-2); }
.ml-date small { display: block; color: var(--mute); font-weight: 400; }
.ml-glyph { font: 600 11px/1.6 var(--f-mono); }
.ml.up .ml-glyph { color: var(--up); } .ml.flat .ml-glyph { color: var(--flat); } .ml.down .ml-glyph { color: var(--down); }
.ml-text b { display: block; font-weight: 600; font-size: 15px; line-height: 1.35; }
.ml-text small { color: var(--mute); font-size: 12.5px; }

/* Forms */
.field { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--card); }
.field:focus { border-color: var(--petrol); outline: none; box-shadow: 0 0 0 3px color-mix(in srgb, var(--petrol) 20%, transparent); }
.field.big { font-size: 20px; font-weight: 600; }
.field.mono { font-family: var(--f-mono); font-size: 13.5px; }
.field.sm { padding: 6px 8px; width: auto; }
.lbl { display: block; margin: 14px 0 6px; font: 600 11.5px var(--f-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--mute); }
.check { display: flex; gap: 8px; align-items: center; margin: 12px 0; font-size: 14.5px; }
.alert { padding: 10px 12px; border-radius: var(--r-sm); background: var(--down-t); color: var(--down); margin: 12px 0; }

/* Tables and prose */
.table-wrap { overflow-x: auto; }
.prose { font-size: 18px; line-height: 1.7; max-width: 68ch; }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { font-size: 22px; margin-top: 1.8em; }
.prose h3 { font-size: 19px; margin-top: 1.5em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: .4em; }
.prose li::marker { color: var(--petrol); }
.prose blockquote { margin: 1.6em 0; padding: 4px 0 4px 20px; border-left: 4px solid var(--apricot); font-size: 20px; font-weight: 500; line-height: 1.5; }
.prose code { font-size: .88em; background: var(--bg-2); padding: 1px 5px; border-radius: 4px; }
.prose table { width: 100%; border-collapse: collapse; font-size: 15.5px; line-height: 1.45; }
.prose th, .prose td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { font: 600 11.5px var(--f-mono); text-transform: uppercase; letter-spacing: .06em; color: var(--mute); background: var(--bg-2); }
.prose hr { border: 0; border-top: 1px solid var(--line); }

/* Reveal */
.rv { opacity: 0; transform: translateY(10px); transition: opacity .5s ease, transform .5s ease; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } #main.enter { animation: none; } .mv:hover { transform: none; } }

@media (max-width: 960px) {
  .top-in { flex-wrap: wrap; gap: 10px 14px; padding-top: 10px; }
  .nav { order: 3; width: calc(100% + 2 * var(--gut)); margin: 0 calc(-1 * var(--gut)); padding: 0 var(--gut) 10px; overflow-x: auto; scrollbar-width: none; }
  .find-btn { min-width: 0; }
  .find-btn span, .find-btn kbd { display: none; }
  .find-btn { width: 38px; height: 38px; padding: 0; justify-content: center; }
  .foot-in { grid-template-columns: 1fr 1fr; }
  .foot-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) {
  .brand span { font-size: 18px; }
  /* The longer "Peptide Exchange" wordmark has to leave room for the three tool buttons on small phones. */
  .top-in { gap: 10px 8px; }
  .brand { gap: 7px; min-width: 0; }
  .brand span { font-size: 16.5px; white-space: nowrap; }
  .brand svg { width: 26px; height: 26px; }
  .top-tools { gap: 6px; }
  .tk-label { padding: 0 10px; }
  .sec { margin-top: 48px; }
  .sec-h { grid-template-columns: 1fr; }
  .sec-h .kick { grid-row: auto; justify-self: start; }
}

/* ---------- Page background: soft colour glows plus the stage-step pattern, fading out from the top corners ---------- */
body::before, body::after { content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none; }
body::before {
  background:
    radial-gradient(55% 45% at 100% 0%, color-mix(in srgb, var(--apricot) 16%, transparent), transparent 70%),
    radial-gradient(50% 50% at 0% 8%, color-mix(in srgb, var(--petrol) 12%, transparent), transparent 70%),
    radial-gradient(60% 40% at 50% 110%, color-mix(in srgb, var(--petrol) 8%, transparent), transparent 70%);
}
body::after {
  background: var(--petrol);
  opacity: .11;
  -webkit-mask: url('/pattern.svg') 0 0 / 56px 56px repeat, radial-gradient(75% 60% at 85% 0%, #000, transparent 75%);
  -webkit-mask-composite: source-in;
  mask: url('/pattern.svg') 0 0 / 56px 56px repeat intersect, radial-gradient(75% 60% at 85% 0%, #000, transparent 75%);
}
:root[data-theme="dark"] body::after { background: var(--on-petrol); opacity: .07; }